I checked out the iPhone Apps that are available for the findings of Fish and there were over 330 available applications. Sure there is a lot of games and even trailers for movies but you do know that you can download other apps for the iPhone and not only with Apple.
Looking for a Reef Fish Hawaii with over 159 fish and Reef Fish Hawaii also offers apps for Snorkel Hawaii the Big Island, Snorkel Kauai and Snorkel Maui Lanai & Molokai. All versions do have a fee but they also offer a free mini version.
Or do what I do, carry the FishFlips ID Books (around the wrist) or carry the Reef Creature or Reef Fish Pocket Pocket Guide.

